Geographic - London - 01 - 946 0000 to 946 0009 - 0171 - 946 0000 to 946 0009 - 020 - 7946 0000 to 7946 0999
020 Dial Code
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020 Uk Dial Code - Number Change - England Phones
020 Uk Dial Code - Number Change - England Phones
020 Dial Code England
020 Dial Code 2024 Japan is running out of phone numbers, so it's making longer ones The Verge
London to get new telephone 0204 area code to cope with demand Metro.co.uk
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